$OpenBSD: patch-libcompat_strchrnul_c,v 1.1 2016/01/22 11:38:23 sthen Exp $
--- libcompat/strchrnul.c.orig	Wed Jan 20 01:28:25 2016
+++ libcompat/strchrnul.c	Wed Jan 20 01:29:38 2016
@@ -12,7 +12,7 @@ char *strchrnul(const char *s, int c)
 
     if (p == NULL)
     {
-        return s + strlen(s);
+        return (char *)s + strlen(s);
     }
     else
     {
